Liquid-treating apparatus



I l. B. TANNER.

LIQUID TREATING APPARATUS.

APPLICATION FILED ILILY 23.1921.

1,407,499, y Patented Feb. 21, 1922.

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LIQUID TREATING APPARATUS APPLICATION FILED IULY 23,1921.. l 1,407,499. Patented Feb. 21, 1922.

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pinos I3. TANNER, or CiIIcAGo,

ILLINOIS; AssIGNoR'To'Jos. E. Nansen a sons, orvr CHICAGO, Immers; A CCPARTNERSHIP.'

A LIeiIIDTnEATINe ArrAnArs.

' To all whomvit mayco'ncern: Y

Beit known that IINos B. TANNER, citizenof the United States, residing at Chicago, inthe `county of Cookfand State of Illinois, have `invented a certain neW and useful Improvement` in Liquid-Treating Apparatuaof which the-following isafull, clear, concise, and exact description.

My inventionrelatesto liquidtreating apparat-us and is of particulaiservice inthev softening of Water to prepareV it' for industrial use.-

M'y invention has for its-object the prof vision of improved means-for maintaining aV selected proportion between?V the Water and chemical flowing into a settling chamber`` at varying' rate. i

In carrying out my invention I employ a of' liquid under pressure, ay pipe.` through which. the liquid passes into the settling chamber forl treatment, a chemical pipe also dischargingl into the"` settling chamber and Vhaving a .port in its side thrf'iugfh whichV chemical `passes 'from the chemical tank into the pipe; a'valve Withintheliquid pipe and controlling ports in said'pipeand rising andl falling according to the pressure ofthe liquid, and mechanism governedflby said valve andgovern'ing theheight of the chemicalf pipe, whereby the varying*'volumesl of Water and chemicalwvill bein fixed propor tiontoI secure therequiredfreaction between thechemical andthe materials that are to be precipitated-aout. ofthe liquid. Y`Water may` readily bei softened'bymeans of such ani equipment having the characteristicsv of my invention.

I Will explain my'invention more fully in connection with the accompanying drawings showing the preferred embodiment' thereofA and inf Which-Fig. .1 Ais a view illustrating'V a Waterzso'ftening plaint, partsbeing shown insectional elevation and a portion of the figure being diagrammatic; Fig. 2 is a sectional ele' vation of apart of the equipment shown in Figlfbuton a larger scale; Fig; 3 is a plan vieWg-on` arsmaller scale, of thel equipment- Y portion shovvnin Fig. 2; andFig. 4 1s a sectionalfview on line 4-4of- Fig; 8;-

Like parts are Aindicatedfby similar charp actersof reference throughout the different figures-= Y Y Y l The equipment: `Will firstbe generally despecificatin of Lettersratent.' Patented; Feb, 21,Y 1922, Applicatibn flied-July 23, 1921'.

Serial No.' 487,122.

munication With thetankispace surrounding side walls of these passages beingperforated toV permit treated water" as indicated at' 6 that descends through the' settling chamber to pass into thejsurrounding chamber that thusconstitutes `a treated Water chamber. f

The Waterto be' treated isfsupplied" from pipe. resting upon the city. mains or from any other suitable source and lio-Ws through the-riser? vthat may pass :upwardly through the settling chamber tothe place Where the'raw Water is to be discharged into such chamber. This' chamber is provided Withj a continuation in the form of afunnel the chamber.-

As Will be more fully hereinafterset'forth,

the Ivater passinglfrom the pipe' 7 into the settling-- chamber fcontrols'the iiow of chemical from the chemicaltank 9 into-the funnel 8 so that thechemicaluwill'ow in quantity proportional tothe amount of raw" Wa'-, ter discharged into said funneL The mix-v ture of Water and" chemicalisinitiated in the" funnel and' isvpromoted by lthe uprightA perforated interleaved baffle plateslO, 11i-'carried by the` horizontal `imperfoi'ate 'passage' Walls 12, 13 and the horizontal' perforated baffle plates 14, 15, 16 that extend in all directions to the pipe3 that 'sup-portshem. The bailleplates form-Ya matter *of myco-pe'nding application Serial N o.y 487,121, iiledJuly 23, 1921.v p

The chemical is supplied to the chemical tank from'a chemical supply tank 17 which discharges into the' chemical tank through the supply pipe v18, and Whichsupplytank receives unemployed chemicalV back fromv the chemical tank through the return pipey 19. The chemical isfpreferably maintainedat a fixed level Within the chemical tank 9 by terminatingthereturn pipe 19 at the selected level, this end ofthe pipe being desirably in the form cfa receiving funnel 20.

8 `at the upper end of partV of the subject" A pump 21may be inserted in the pipe-18T to force the flow of the chemical, The softened .Water finds passage through theperforations 6 in thefside' Walls ofthe passagesv 4 and into the softened Water chamber in the tank 1 that surrounds the settling clianiber'-p 8. An outlet pipe 22 connects the top portion ofthe softened Water chamber With the top 'end ofthe upright chamber 23. This chamber discharges, at its lower end,into the space beneath the filters 24 through which the softened Water'passes into the soft Water' supply chamber 25. kThe chamber 25 is formed between the chamber 23and the tank l 26 in which the chamber 23 and the filters 24 are ,-'disposed The" filtered Water is dis- -charged from the tank through a dis-` charge' pipe 27 having a swinging section E28-Whose receiving end is held at the upper level ofthe filtered softened Water'by means olf lay iioat 29 attached to the upper end of this swingingpipe section.

The impurities'intercepted'by the yfilter from the softened Water flou/ing `ther`e` through may be discharged through thedischarge pipe 30 when the valve Slin` this pipe is opened to permit Vthe Water from chamberf to flow downwardly very lrapidly to Yvva'shavvay the collected impurities. Waterin` chamber 25 thenalso passesbacki wardly through the filter to cleanse it.l

Asset forth in my aforesaid co-pending application, the sludge lor precipitate resulting: from the Water softening process may be discharged through lthe pipe 32 when the valve33 therein is opened. vThis discharge pipe has receiving branches 34 'in the pas' sages 4. 'These receiving branches are each provided With'a numberof receiving mouths 35 distributed along thesame. The pipe 32 has another "branch V3 6 terminating Within andat the bottom ofthe settling chamber 3j,

this branch pipe'being connected With pipe 32 belovv valve 33. A valve 37 is in the branch 36."- When itis desired to dischargel the Water Without effecting Vmaterial removal ofv the sludge, valve 3 7 is alone opened.- Whenrthe sludge is to be removed both valves may be opened, or valve 33 may alone be opened.

- Reference will now be'made more particuf larly lto Figs.v 2, 3 and 4 which most vclearly illustrate vthe portion of the equipment form'- ingthesubject matter'of my pres'ent applii cation.v f ,v Y'

The upper end of pipe 7 isvprovided with l Weir vports 88 Vthat'are elongated lengthwise of the pipe. r A Weighted valve 39'has a range'of movement extending through the Zone'of'said ports and slightlyon either side thereof, the valve, functioning to completely close said pipe and vto fully open said ports or partially open the same, depending upon thehead ror pressure ofthe Water flowing 'upwardly in said pipe. Valve 39 has an up- Wa'rdly-V extendingv stem` 405 having pin and slot connection 41 at its upper end With a lever 4,2 fulcrumed .at43 between its ends and veryi near; that eidfivhich is pin andl slot connection' 44`ivith'the upper end of an uprightpipe-.fljthat passesthrough and is in sliding relation to the bottom of the chemical tanlr, there being a stuffing box 46 in said tank bottomV through which the pipe 45 may 'slid'el This pipe discharges the chemical into the funnel 8. The end of the lever 42 that is-adjacent the 'valve stem '40 is pro-` vided With a Weight 46 Vto:suiiicientlyoffset port471 in tlieregionof'the upper-levelof the chemical inthe tank-59.- The pressure eX- ertedfby `Vthe `heavy valve'39 upon the Water in thepip'e 7 Counteracts the pressure of this water upon the valve sufhciently to enable the valveto 'control theposition of the pipe 45-and1its port 47. l The arrangement and operation' o'fthese -partfs'iis such fthatwvhen the;

bottom of the valve isbeloyv the bottom of thefports BS'Jthat thebottom of the port 47 is abovethe-chemical'in tanlr 9. When the bottom ofsaid valve is above vthevbottom of; f Y.

the ports controlled rtherebyfthe bottom of the port 47 is belowthe upper level of the ohemicalil Theportsareso proportioned and intcrrelated'thatthe amount of Water passing throughv the ports 3S and the amount ofchemical flovving'through port 47 into pipe 45 and through said pipe intothe funnel 8 are infiXed proportion, the volume o'fchemical' flowing through thepipeglncreasing or decreasing Withcany increase Vor decrease of the .liow of Water.: The Water and chemical, in varying volume butin fixedproportion, are initially .received in the funnel 8 from which they are :passed tothe ,channel ccn taining lthe:.baillesll() and 11 andfrom thisA channel through the perforated baffles-14, 15, 1621s` hitherto fully described. yllhile- I have herein shoWn and ,particu-V lalydescribed the preferred embodiment ing with said source; a valvein said pipe op- 4 erated by the liquid, the pipehaving a port closed by. said .valve andalso opened to varying extentsvby the valve according to thepressure exerted upon the valve by the liquid to betreated is"Y discharged through said port; a chemicaltank; andla chemical pipe movable up and down and having 'a port at one end near. the level-.ofthe chemiiso liquid; a settling chamber into l.Which kthe cal in the chemical tank and communicating With the chemical -tankto receive chemical therethrough, said chemical pipe discharging at its other end into the settling chamber said chemical pipe being connected with the aforesaid valve to increase the extent of the port in the chemical pipe through which chemical may iiow as said valve increases the extent of the liquid port through which liquid to be treated may flow, the parts being Y arranged to maintain substantially fixed proportion of liquid and chemical irrespective of the rate at Which they HOW.

2. Liquid treating apparatus including a source of liquid furnishing liquid to be treated under pressure; a pipe communicating with said source; a valve in said pipe operated by the liquid, the pipe having a port closed by said valve and also opened to varying extents by the valve according to the pressure exerted upon the valve by the liquid; a settling chamber into which the liquid to be treated is discharged through said port; a chemical tank; and a chemical pipe in the chemical tank and movable up and down therein and having a port at one end near the level of the chemical in the chemical tank, said chemical pipe discharging at its other end into the settling chamber, this other end of the chemical pipe passing through a Wall in the chemical tank and being in sliding relation thereto, said chemical pipe being connected with the aforesaid valve to increase the extent of the port in the chemical pipe through Which chemical may flow as said valve increases the extent of the liquid port through Which liquid to be treated may flow, the parts being arranged to maintain substantially fixed proportion of liquid and chemical irrespective of the rate at which theytlow.

3. Liquid treating apparatus including a source of liquid furnishing liquid to be treated under pressure; a pipe communicating with said source; a valve in said pipe operated by the liquid, the pipe having a port closed by said valve and also opened to varying extents by the valve according to the pressure exerted upon the valve by the liquid; a settling chamber into which the Y chemical may liquid to be treated is discharged through said port; a chemical tank; a chemical pipe movable up and down and having a port at one end near the level of the chem-A ical in the `chemical tank and communicating with the chemical tank to receive chemical therethrough, said chemical pipe discharging at its other end into the settling chamber; and lever mechanism connecting said valve and chemical pipe to increase the extent of the port in the chemical pipe through which chemical may How as said valve increases the extent of the liquid port through which liquid to be treated may flow, the parts being arranged to maintain substantially fixed proportion of liquid and chemical irrespective of the rate at which they flow.

4. Liquid treating apparatus including a source of liquid furnishing liquid to be treated under pressure; a pipe communicating With saidV source; a valve in Said pipe operated by the liquid, the pipe having a port closed by said valve and also opened to varying extents by the valve according Y to the pressure exerted upon the valve by the liquid; asettling chamber into which the liquid to be treated is discharged through said port; a chemical tank; and a chemical pipe in the chemical tank and movable up and down therein and having a port at one end near the level of the chemical in the chemical tank, said chemical pipe discharging at its other end into the settling chamber, this other end of the chemical pipe passing through a Wall in thechemical tank and being in sliding relation thereto; and lever mechanism connecting said valve and chemical pipe to increase the extent of the port in the chemical pipe through which ilovv as said valve increases the extent of the liquid port through Which liquid to be treated may flow, the parts being arranged to maintain substantially fixed proportion of liquid and chemical irrespective of the rate at which they flow.

In Witness whereof, I hereunto subscribe my name this 15th day of July, A. D. 1921.

INOS B. TANNER. 

